xml-rpc is no longer bundled with the PHP source code as of PHP 8.0.
You'll need to get it from PECL. Many distro and third party repos may still ship it (tho the package name may have changed to reflect the move to PECL)
XML-RPC support in PHP is not enabled by default. You will need to use the --with-xmlrpc[=DIR] configuration option when compiling PHP to enable XML-RPC support.
xml-rpc is no longer bundled with the PHP source code as of PHP 8.0.
You'll need to get it from PECL. Many distro and third party repos may still ship it (tho the package name may have changed to reflect the move to PECL)